A warhead casing and method of inserting compartments into a warhead casing. The system includes a nose section, a tail section, and a tubular body section therebetween. The sections define a lengthwise axis of the casing. The system further includes a first plurality of compartments radially arranged along a perimeter of the tubular body section. The first plurality of compartments form a first cross-sectional layer. The system further includes a central cavity extending along the lengthwise axis of the casing, the central cavity being defined at least by an inner surface of the first plurality of compartments or the tubular body section.

A countermeasure (200) for use against a vehicle having an electric motor comprising at least one magnet. The countermeasure (200) comprises an ejection system (205) comprising a plurality of pieces of magnetic material (203). The ejection system (205) is configured to release the plurality of pieces (203) in response to receipt of a trigger signal (209). Also a method of disrupting the operation of a vehicle having an electric motor comprising at least one magnet using an ejection system (205) containing a plurality of pieces (203) of magnetic material. The method comprises detecting the vehicle; receiving, at the dispersal system, a trigger signal (209); in response to the receipt of the trigger signal (209), the ejection system (205) releasing the plurality of pieces (203); some of the plurality of pieces (203) being attracted to the magnet, sticking to the magnet, and thereby obstructing the motor.

A countermeasure (200) for use against a vehicle having an electric motor comprising at least one magnet. The countermeasure (200) comprises an ejection system (205) comprising a plurality of pieces of magnetic material (203). The ejection system (205) is configured to release the plurality of pieces (203) in response to receipt of a trigger signal (209). Also a method of disrupting the operation of a vehicle having an electric motor comprising at least one magnet using an ejection system (205) containing a plurality of pieces (203) of magnetic material. The method comprises detecting the vehicle; receiving, at the dispersal system, a trigger signal (209); in response to the receipt of the trigger signal (209), the ejection system (205) releasing the plurality of pieces (203); some of the plurality of pieces (203) being attracted to the magnet, sticking to the magnet, and thereby obstructing the motor.

A mass reducing projectile is provided. The mass reducing projectile includes a shell, one or more weights, and a low melt fusible alloy. The one or more weights are disposed within the shell. The low melt fusible alloy is disposed within the shell so as to encase the one or more weights within the shell.

An explosive device, such as a missile, artillery round, aerial bomb, mortar round, or mine, that utilizes a wall structure that upon detonation provides displacement of smaller fragments interstitially between larger fragments. The displacement of the smaller fragments into the interstitial spaces at detonation creates an expanding fragmentation curtain that momentarily contains expanding gases to increase the impulse pressure of the explosion, thereby increasing the kinetic energy imparted to the fragments. In some embodiments, the wall structure includes ordered layers of preformed metal fragments encased in binder material that suspends the fragments in a desired arrangement prior to detonation.

An explosive device, such as a missile, artillery round, aerial bomb, mortar round, or mine, that utilizes a wall structure that upon detonation provides displacement of smaller fragments interstitially between larger fragments. The displacement of the smaller fragments into the interstitial spaces at detonation creates an expanding fragmentation curtain that momentarily contains expanding gases to increase the impulse pressure of the explosion, thereby increasing the kinetic energy imparted to the fragments. In some embodiments, the wall structure includes ordered layers of preformed metal fragments encased in binder material that suspends the fragments in a desired arrangement prior to detonation.

A hand grenade for launching BB bullets includes two half shells each including a spiral bullet storage and one half shell further including a discharge opening; a hollow, cylindrical base including a bottom recess, an air passage communicating with one bullet storage, and a valve at an end of the air passage; a steel ball on the recess to block the valve; a pressing assembly including a disc urging against the steel ball, a hollow cylinder extending upward from the disc, a magnet in the hollow cylinder, and a rod partially in the hollow cylinder to engage with the magnet; a hollow, cylindrical member threadedly secured to the cylindrical base; a cup-shaped cap threadedly secured to the cylindrical member and including two opposite projections on an inner surface and a bottom through hole with the rod passing through; and a switch including two opposite protrusions under the projections respectively.

In an intelligent multi-rotor rescue thrower, a throwing projectile head is located at a foremost end of the thrower, a parachute storage bin is mounted at a center of a front end of the throwing projectile head, a rear end of the throwing projectile head is connected to a projectile body shell through threads, and a first splitter plate, a second splitter plate, and a third splitter plate are directly connected to the projectile body shell through slide grooves built in the projectile body shell to equally divide a space in a cavity of the projectile body shell; connecting flanges tightly connect the projectile body shell to motors, a rotor is connected to an upper end of each of the motors, and three rotors are provided in the space in the cavity of the projectile body shell.

In an intelligent multi-rotor rescue thrower, a throwing projectile head is located at a foremost end of the thrower, a parachute storage bin is mounted at a center of a front end of the throwing projectile head, a rear end of the throwing projectile head is connected to a projectile body shell through threads, and a first splitter plate, a second splitter plate, and a third splitter plate are directly connected to the projectile body shell through slide grooves built in the projectile body shell to equally divide a space in a cavity of the projectile body shell; connecting flanges tightly connect the projectile body shell to motors, a rotor is connected to an upper end of each of the motors, and three rotors are provided in the space in the cavity of the projectile body shell.

A counter drone device adapted to render propellers of drones inoperable. The counter drone device may be a weighted filament adapted to be projecting into the propeller of a drone so as to entangle/ensnare/wrap around propeller shaft and/or blades, rendering the drone inoperable.